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Interpreter_FPUtils: Set FPSCR.VXSNAN if either operand to NI_add() is a signaling NaN

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This corrects VXSNAN flag setting for fadd, fadds, ps_add, ps_sum0, and ps_sum1
This commit is contained in:
Lioncash 2018-05-26 16:05:30 -04:00
parent f568e41fac
commit 054c1b32eb
1 changed files with 7 additions and 1 deletions
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8
Source/Core/Core/PowerPC/Interpreter/Interpreter_FPUtils.h
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@ -137,16 +137,22 @@ inline double NI_div(double a, double b)
inline double NI_add(double a, double b) inline double NI_add(double a, double b)
{ {
double t = a + b; const double t = a + b;
if (std::isnan(t)) if (std::isnan(t))
{ {
if (Common::IsSNAN(a) || Common::IsSNAN(b))
SetFPException(FPSCR_VXSNAN);
if (std::isnan(a)) if (std::isnan(a))
return MakeQuiet(a); return MakeQuiet(a);
if (std::isnan(b)) if (std::isnan(b))
return MakeQuiet(b); return MakeQuiet(b);
SetFPException(FPSCR_VXISI); SetFPException(FPSCR_VXISI);
return PPC_NAN; return PPC_NAN;
} }
return t; return t;
} }